You mean its not???? Doesn't VW own GM....only a matter of time
160 thermostat
Pro
Joined: Jan 2003
Posts: 526
Likes: 0
From: Tampa fl
Originally Posted by Yell-01Vette
When I first bought the car, I was holding @ 190 all the time, but lately on long drives home in heavy traffic I've been climbing to 220, even ticked 230 once for just a sec, kind of has me worried.
I'm not super-handy, so I'm not sure about pulling the radiator to clean it, and I'm concerned that it might be a thermo issue, having had that problem before on prior (quite a bit higher mileage) cars. If I decide to replace the thermo, I haven't decided what temp to go with, i'm thinking of adding a blackwing or vararam and a catback system in the not-to-distant future. Any suggestions would be much appreciated, sorry for the hijack.
Oh, and lest I forget the requirement for posting in this thread:
BS-finance-Mizzou (04)
I'm not super-handy, so I'm not sure about pulling the radiator to clean it, and I'm concerned that it might be a thermo issue, having had that problem before on prior (quite a bit higher mileage) cars. If I decide to replace the thermo, I haven't decided what temp to go with, i'm thinking of adding a blackwing or vararam and a catback system in the not-to-distant future. Any suggestions would be much appreciated, sorry for the hijack.
Oh, and lest I forget the requirement for posting in this thread:
BS-finance-Mizzou (04)
For your own safety I would suggest you post a new thread for this question. 
my credentials: B.S. artist
Former Vendor
Joined: Jan 2000
Posts: 5,593
Likes: 631
From: Brighton
Wow, you are pull no punches here so I'm going to sit right on the fence and watch. With that said, you have to place some value in what ET is saying. Documentation and testing usually out weighs the gut feelings everytime. I have heard many times people tell me that the C5's dyno higher HP's at lower temps but I wonder how many times the ONLY change was lowering the temps. Often several mods were done between dynos and who know what did what?
The one question I still will never understand is:
Q1 How does a lower stat change the operating temperature? Since the stat does not control high end, changing the low end shouldn't have any affect.
The one question I still will never understand is:
Q1 How does a lower stat change the operating temperature? Since the stat does not control high end, changing the low end shouldn't have any affect.
Safety Car
Joined: May 2000
Posts: 4,821
Likes: 347
From: Albuquerque NM
A1. It changes the operating temp because it allows the coolant to continue to flow through the radiator, and loose heat till it gets to the lower temp when the stat closes. This presumes you either change the fan turn on/off temps or are going faster than 35 mph to get air flowing through the radiator. As for your musings about the only change, you're right. But, if you're careful, you can do this, and I have. 
Heel & Toe
Joined: Jul 2003
Posts: 17
Likes: 0
From: Albuquerque
I was going to reply but as I am British I could not convert my qualifications haha
Oh and I drive a Ford so guess my opinion might be considered moot.
Oh and I drive a Ford so guess my opinion might be considered moot.
Last edited by Hilander; Apr 14, 2006 at 06:05 PM.
Former Vendor
Joined: Jan 2000
Posts: 5,593
Likes: 631
From: Brighton
Originally Posted by 6Speeder
A1. It changes the operating temp because it allows the coolant to continue to flow through the radiator, and loose heat till it gets to the lower temp when the stat closes.
Team Owner
Joined: Nov 2000
Posts: 29,689
Likes: 9
From: Central Florida
Jax Events Coordinator
CI 3-4-5-6-7-8-9 Veteran
St. Jude Donor '03-'08
John Lingenfelter put one on my Corvette.
Mike Norris put one on my GTO.
Both did it as a standard part of the package I ordered.
Thats all I need to know...
Mike Norris put one on my GTO.
Both did it as a standard part of the package I ordered.
Thats all I need to know...
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Drifting
Joined: Nov 2004
Posts: 1,426
Likes: 0
From: AnnArbor Michigan
St. Jude Donor '05
Originally Posted by RebelVette
I think everyone here needs a little Valium...
__________________________________
RebelVette, Pharm.D.
__________________________________
RebelVette, Pharm.D.
Screw the 160* T-stat, sign me up for the drugs....
Safety Car
Joined: May 2000
Posts: 4,821
Likes: 347
From: Albuquerque NM
Originally Posted by Tom DeWitt
Ok, maybe. But when someone is running say 200-210 with a 190 stat, the stat is fully open. Then when they install a 160 it is also fully open anything over 160. If the system wouldn't come down to 190 with a 190 stat, it isn't going to come down to 160 either.
The reason they are running 200 to 210 because there is no air flowing through the radiator. Drive faster, or turn the fans on earlier to pull the heat out of the coolant. Stock fans don't turn on till 205 (Stage1) and 220 (Stage 2)
If the system is in good shape, not clogged with leaves and stuff, then it will come down.
Team Owner
Joined: Mar 2001
Posts: 21,325
Likes: 3,841
From: small town in S.E Pa. PA
St. Jude Donor '03-'04
Originally Posted by 6Speeder
The reason they are running 200 to 210 because there is no air flowing through the radiator. Drive faster, or turn the fans on earlier to pull the heat out of the coolant. Stock fans don't turn on till 205 (Stage1) and 220 (Stage 2)
If the system is in good shape, not clogged with leaves and stuff, then it will come down.
If the system is in good shape, not clogged with leaves and stuff, then it will come down.
Being involved in the oil life monitor system and the PCM algorythims I can tell you This Guy 6 speeder is again offering his Bull sh|t there is No 205 command or 220 command for fan settings
These are the actual PCM algorythims as written:
For late Models 01-04
The low speed cooling fans are commanded on when the coolant temperature reaches 108°C (226°F). They are turned off if the coolant temperature lowers to 104°C (219°F). The high speed cooling fans are commanded on when the coolant temperature reaches 113°C (235°F). they are turned off if the coolant temperature lowers to 108°C (226°F). When the A/C is on and the coolant temperature reaches 85°C (185°F), the low speed cooling fans will be turned on at vehicle speeds less than 56 kPh (35 mph). Fans are turned off above 35 mph.
For early model years:97-00
Low speed fans come on at 219,high speed fans come on at 228,low speed with a/c on...
Both fans have high and low speed capabilities
The Fans cycle on and off with the AC on when the AC head pressure dictates it.
Lowering the fan setting only effect coolant temps below 35 mph.
Safety Car
Joined: May 2000
Posts: 4,821
Likes: 347
From: Albuquerque NM
You need to get a life ET. 
The point is his car runs those temps because he is running slower than 35 and/or the fans are at their stock settings. Which I said. As for the 205/220 Vs. 219 etc. I changed them on my Vette 5 years ago. Damm, am I glad. Stock is even worse than I thought.
The point is his car runs those temps because he is running slower than 35 and/or the fans are at their stock settings. Which I said. As for the 205/220 Vs. 219 etc. I changed them on my Vette 5 years ago. Damm, am I glad. Stock is even worse than I thought.
Instructor
Joined: Mar 2006
Posts: 178
Likes: 0
Originally Posted by Evil-Twin
More Bullsh|t from a know nothing about this car...
Being involved in the oil life monitor system and the PCM algorythims I can tell you This Guy 6 speeder is again offering his Bull sh|t there is No 205 command or 220 command for fan settings
These are the actual PCM algorythims as written:
For late Models 01-04
The low speed cooling fans are commanded on when the coolant temperature reaches 108°C (226°F). They are turned off if the coolant temperature lowers to 104°C (219°F). The high speed cooling fans are commanded on when the coolant temperature reaches 113°C (235°F). they are turned off if the coolant temperature lowers to 108°C (226°F). When the A/C is on and the coolant temperature reaches 85°C (185°F), the low speed cooling fans will be turned on at vehicle speeds less than 56 kPh (35 mph). Fans are turned off above 35 mph.
For early model years:97-00
Low speed fans come on at 219,high speed fans come on at 228,low speed with a/c on...
Both fans have high and low speed capabilities
The Fans cycle on and off with the AC on when the AC head pressure dictates it.
Lowering the fan setting only effect coolant temps below 35 mph.
Being involved in the oil life monitor system and the PCM algorythims I can tell you This Guy 6 speeder is again offering his Bull sh|t there is No 205 command or 220 command for fan settings
These are the actual PCM algorythims as written:
For late Models 01-04
The low speed cooling fans are commanded on when the coolant temperature reaches 108°C (226°F). They are turned off if the coolant temperature lowers to 104°C (219°F). The high speed cooling fans are commanded on when the coolant temperature reaches 113°C (235°F). they are turned off if the coolant temperature lowers to 108°C (226°F). When the A/C is on and the coolant temperature reaches 85°C (185°F), the low speed cooling fans will be turned on at vehicle speeds less than 56 kPh (35 mph). Fans are turned off above 35 mph.
For early model years:97-00
Low speed fans come on at 219,high speed fans come on at 228,low speed with a/c on...
Both fans have high and low speed capabilities
The Fans cycle on and off with the AC on when the AC head pressure dictates it.
Lowering the fan setting only effect coolant temps below 35 mph.
Advanced
Joined: Jun 2004
Posts: 92
Likes: 0
From: Portland OR
Originally Posted by Evil-Twin
More Bullsh|t from a know nothing about this car...
Being involved in the oil life monitor system and the PCM algorythims I can tell you This Guy 6 speeder is again offering his Bull sh|t there is No 205 command or 220 command for fan settings
These are the actual PCM algorythims as written:
For late Models 01-04
The low speed cooling fans are commanded on when the coolant temperature reaches 108°C (226°F). They are turned off if the coolant temperature lowers to 104°C (219°F). The high speed cooling fans are commanded on when the coolant temperature reaches 113°C (235°F). they are turned off if the coolant temperature lowers to 108°C (226°F). When the A/C is on and the coolant temperature reaches 85°C (185°F), the low speed cooling fans will be turned on at vehicle speeds less than 56 kPh (35 mph). Fans are turned off above 35 mph.
For early model years:97-00
Low speed fans come on at 219,high speed fans come on at 228,low speed with a/c on...
Both fans have high and low speed capabilities
The Fans cycle on and off with the AC on when the AC head pressure dictates it.
Lowering the fan setting only effect coolant temps below 35 mph.
Being involved in the oil life monitor system and the PCM algorythims I can tell you This Guy 6 speeder is again offering his Bull sh|t there is No 205 command or 220 command for fan settings
These are the actual PCM algorythims as written:
For late Models 01-04
The low speed cooling fans are commanded on when the coolant temperature reaches 108°C (226°F). They are turned off if the coolant temperature lowers to 104°C (219°F). The high speed cooling fans are commanded on when the coolant temperature reaches 113°C (235°F). they are turned off if the coolant temperature lowers to 108°C (226°F). When the A/C is on and the coolant temperature reaches 85°C (185°F), the low speed cooling fans will be turned on at vehicle speeds less than 56 kPh (35 mph). Fans are turned off above 35 mph.
For early model years:97-00
Low speed fans come on at 219,high speed fans come on at 228,low speed with a/c on...
Both fans have high and low speed capabilities
The Fans cycle on and off with the AC on when the AC head pressure dictates it.
Lowering the fan setting only effect coolant temps below 35 mph.
Advanced
Joined: Jun 2004
Posts: 92
Likes: 0
From: Portland OR
Originally Posted by Evil-Twin
did you reset your fans...having a faster opening thermostat has nothing to do with how hot your engine gets,,, it just controls how cold it will get...on a cold night your engine will see temps close to 160 F which is very bad for this engine... with a stock 190 stat the coldest your engine will get is 190 F which is good.
once the stat is open be it 160 or 190, heat will rise in the engine just as fast as it did before.... setting your fans to a lower temp will help keep coolant at a lower temp under 35 mph... after 35 mph the fans shut off. with the ac on the fans will cycle on and depending on ac head pressure.
once the stat is open be it 160 or 190, heat will rise in the engine just as fast as it did before.... setting your fans to a lower temp will help keep coolant at a lower temp under 35 mph... after 35 mph the fans shut off. with the ac on the fans will cycle on and depending on ac head pressure.
I think you are the one full of
Racer
Joined: Dec 2003
Posts: 446
Likes: 0
From: ft. Worth tx.
Originally Posted by Too-Tall
Hey ET............ I checked your profile and you say you HAVE 160 degree stat...............sounds like you are endangering your engine on COLD NIGHTS! Very bad for your engine!!
I think you are the one full of
I think you are the one full of
I saw that too!
Le Mans Master
Joined: Oct 2005
Posts: 7,088
Likes: 1,829
From: Metro Detroit Michigan
ET, sometimes things are easier to understand or accept when we have more information.
Can you tell us precisely what what happens and why (bad things) if an engine is run with a 160 thermostat, and do you have results of engine longevity tests with a cooler thermostat versus stock?
Can you tell us precisely what what happens and why (bad things) if an engine is run with a 160 thermostat, and do you have results of engine longevity tests with a cooler thermostat versus stock?
Burning Brakes
Joined: Feb 2004
Posts: 1,024
Likes: 108
From: Ocala, Fl. State of Confusion
I just love it.
This ET guy has been writing many long winded diatribes about how 160 degree stats are terrible for YOUR car, but in HIS car he runs a 160 degree stat. Sounds just like a GM engineer, do as I say, not as I do.
I absolutely love it.
This forum is great.
This ET guy has been writing many long winded diatribes about how 160 degree stats are terrible for YOUR car, but in HIS car he runs a 160 degree stat. Sounds just like a GM engineer, do as I say, not as I do.
I absolutely love it.
This forum is great.
Safety Car
Joined: May 2000
Posts: 4,821
Likes: 347
From: Albuquerque NM
You know et, if you are willing to keep the foul language and attacks off the forum, I'd love to have a civil, rational discussion on the subject. So far, you have mentioned (in passing) the ONLY negative I have seen to a lower temp thermostat, expected oil life on the Corvette's algorythm.
What do you say?
What do you say?
